Typewriting machine



' Sep&. 11, B923. 3,467,941

. A. 5. F. KuRowsKu TYPEWRI TING MACHINE Filed July 21 1920 ALFRED G. F. KUROWSKI, OF BROOKLYN, NEW YORK, ASSIGINOR TO UNDERWOOJD TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING MACHINE.

Application filed July 21, 1920. Serial No. 397,837.

-comprising a plurality of plies which may be in the form of fan-folds, such, for example, as. the typewriting machine forming the subject of the patent to VVernery &

Smith, No. 1,132,055, of'March 16, 1915, andmore particularly'tlie present invention may be considered an improvement upon the carhon-holding device disclosed in the patent to Jesse A. B. Smith, No. 1,177,546, of March 28, 1916, for typewriting machine.

An object of the present invention is to provide improved means for adjustably varying the effective length of the usual carhon-holding bars or blades according to the width of the web, and a more particular object is to provide means for changing or varying the position of the web-splitting knives such as are commonly employed on the free outer ends of the carbon-holding blades for splitting the fan-folded web at the marginal folds therein. The web-splitting knives may be shifted either to correspond to the width of the web or to render the knives effective or ineffective.

According to the present invention, means are provided for bodily adjusting the carbon-holding blade or bar on its support in the direction of its length for thereby varying the effective length of the free projecting carbon-supporting part of the blade as determined by the width of the work or web, and at the same time correspondingly varying the working position of the work-splitting knife which may be provided on the free end of the carbon-holding blade.

More particularly the present invention comprises a base member upon which the carbon-holding blade, together with the web-splitting knife, is slidably mounted and guided for adjustment on the base member in the direction of the length of the blade, the usual carbon-clamping clip being pivoted on the base member, so that the blade is longitudinally adjustable relatively to the base member and to the clip for varying the effective length of the blade and for correspondingly varying the working position of the web-splitting knife, as determined by the width of a fan-folded web or form to he s lit by the knife; and the base member, toget er with the parts mounted thereon, may be readily removable or quickly detachable from the usual carbon-supporting carriage.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective view, from the front and left, of arts of a typewriting machine in which t e present invention is embodied.

Figure 2 is an enlarged perspective view, from the front and right, of one of the adjustable knife-carrying carbon-holding bars and its adjuncts, embodying the present invention.

Figure 3 is a spread perspective view of the parts appearing at the'left in Figure 2.

Figure 4 is a partial vertical section on a plane indicated by the line 4-4 of Figure 1 as viewed from the front of the machine, and of Figure 2 as viewed from the left and upwardly.

In the accompanying drawings, a typewriter of the kind hereinbefore mentioned is only sufficiently illustrated to indicate clearly the manner in which the present invention is to be embodied therein. This typewriting machine includes a usual platen 1 and a usual carbon-carriage 2, mounted to move towards the platen 1. as the work proceeds, and which may be pushed back for freshly positioning the carbons by means of a usual forwardly-projecting handle 3. The usual web or form 4, shown as comprising upper, lower and middle plies which are initially fan-folded, after passing the carbon-holding devices, passes forward beneath the platen 1, and interleaved or interposed between the plies of the web 4: are usual carbon-sheets 5 which are carried by the carbon-holders on the carbon-carriage 2. Upon the ends of the carbon-carriage 2 are mounted usual stepped brackets or supporting blocks 6 for supporting the carbon-holding bars or blades, and, for. this purpose, each of the steps of each of these blocks 6 is shown as provided with a pair of diagonally-arra-nged holes 7, forming sockets for commonly carried by the attaching ends of the carbon-ho1ding blades or bars.

According to the resent invention, don el pins 8, instead of being provided directly on the carbon-carrying blade, as commonly heretofore, are carried by, and project' substantially usual construction and shown as formed in one piece with the carbon-holding blade 10 as commonly has been done heretofore. In accordance with the present invention, adjacent to its other end, the earhon-holding blade 10 is provided with a longitudinal guide-slot 12, through which extend spaced guiding pins 13 and 14, into the base-plate 9. The pin 13 is shown as a clamping screw screwing into the base-plate 9 and provided with an outer head for fil'Illl holding the blade 10 in lon itudinall'y-a' justed position on thebase-p ate 9, and the in 14 is shown as rigidly secured at its ower end in the base-plate 9 and as provided at its upper end with a projecting knob forming a handle. A carbon-holding cli 15, of usual form, is pivoted at its inner en to swing on the knob-providing guidein 14 above the blade 10, and in its outer -shaped art fits over the rear edge of the blade 10 or clamping one of the carbonsheets thereto in the usual manner.

In operation, it is to be noted that th carbon-holding clip 15 has its longitudinal position determined by the base-plate 9, to which it is pivoted by the pin 14, while the carbon-holding blade is bodily adjustable in the direction of its length, relatively to the clip and base-plate 9, such adjustment being accomplished merely by loosening the screw 13 and sliding the blade 10 to the desired osition and then tightening the screw 13. iii this way the efl'ective length of the carbon-holding blade 10, together with the position of the web-splitting knife 11, carried by the outer end thereof, may be altered or varied, as determined by the width of the fan-folded web 4.- In some cases, depending upon the nature of the work, it may not be desired to split the web a at its marginal fan-folds, and, in such a case, the blade 10 may be moved inward sufficiently so that its outer knife-carrying end will come entirely at the inside of the fanfolded margin with the outer end of this blade 10 and its knife 11 between the plies of web, thereby rendering the knife 11 in- 1(:perative, so as to leave the fan-folds inact.

In the particular machine shown in the drawings, it will be noted that two of the above-described carbon-holders embodying improvements may be used without others.

Having thus described my invention, I claim:

1. A carbon-holding device for typewriters, comprising afbar-support, a carbonholding bar slidably mounted and guided on the bar-support to be adjustable thereon in the direction of the length of thebar for varying its effective length as determined by the width of the work, and clamping means engageable with the bar and with the bar-support to secure the bar firml in various positions of longitudinal ad ustment on the bar-support.

2. A carbon-holding device for t pe-' writers, comprising a bar-support, a carbonholdin bar provided at its free end with a web-splitting knife and slidably mounted and guided adjacent its other end on the bar-support to be longitudinally adjustable thereon for varying the position of the knife relatively to the bar-support in the direction of the length of the bar, and

clamping means engageable with the bar and with the bar-support to securethe bar firmly in various positions of longitudinal adjustment on the bar-support.

3. A carbon-holding device for a typewriting'machine, comprising a bar-carrying base member adapted to be detachably mounted on the machine, and a carbonholding bar rigidly mounted on the base member and adjustable thereon in the direction of the length of the bar for varying its effective length as determined by the width of the work.

4. A carbon-holding device for a typewriting machine, comprising a bar-carrying base member adapted to be detachably mounted on the machine, and a carbonholding bar provided at its free end with a web-splitting knife and slidably mounted and guided adjacent its other end on the base member to be longitudinally adjustable thereon for varying the position of the knife relatively to the base member in the direction of the length of the bar.

5 A carbonholding device for a typewriting machine, comprising a bar-carrying base member adapted to be detachably mounted on the machine, a carbon-holding bar slidably mounted and guided on the base member to be adjustable thereon in the women direction of the length of the'bar for varying its effective length as determined by the width of the work, and a carbon-holding clip pivoted on thebase member so that the bar may slide longitudinally relatively thereto and co-operative with the bar in its various positions of longitudinal adjustment for clamping the carbon to the bar.

6. A carbon-holding device for a typewriting machine, comprising a bar-carrying base member adapted to be detachably mounted on the machine, a carbon-holding bar provided at its free end with a websplitting knife and slidably mounted and guided adjacent its other end on the base member to be longitudinally adjustable thereon for varying the position of the knife relatively to the base member in the direction of the length of the bar, and a carbon-holding clip pivoted on the base member so that the bar may slide longitudinally relatively thereto and co-operative with the knife-providing bar in its various positions of longitudinal adjustment for clamping the carbon to the bar.

7. A carbon-holding device for a typewriting machine, comprlsing a base member adapted to be detachably mounted on the machine, a carbon-holding bar providedadjacent to one of its ends with a longitudinal slot, and a pair of spaced guide-plus projecting from the base member through said slot, one of said pins forming a clamping screw, whereby the bar may be secured in various positions of longitudinal adjustment on the base member for thereby varying its effective length.

8. A carbon-holding device for a typewriting machine, comprising a base member adapted to be detachably mounted on the machine, a carbon-holding bar provided adj acent to one of its ends with a longitudinal slot, a pair of spaced guide-pins projectin from the base member through said slot, an a carbon-holding clip pivoted on one of the guide-pins, the other guide-pin forming a clamping screw for holding the bar in longitudinally-adjusted position on the base member, whereby its effective length may be varied.

9. A carbon-holding device for a type writing machine, comprising a base member adapted to be detachably mounted on the machine, a carbon-holding bar provided adjacent to one of its ends with a longitudinal slot, and rovided at its other end with a web-splitting knife, and a pair of spaced guide-pins projecting from the base member through said slot, one of said pins forming a clamping screw, whereby the bar may be secured in various positions of adjustment on the base member, thereby to vary the working position of the knife according to the width of the web to be split.

10. A carbon-holding device for a typeber adapted to be detachably mounted on the machine, a carbon-holding bar provided adjacent to one of its ends with a longitudinal slot, and provided at its other end with a Web-splitting knife, a pair of spaced guidepins projecting from the base member through said slot, and a carbon-holding clip pivoted on one of the guide-pins, the other guide-pin forming a clamping screw for holding the bar inlongitudinally-adjusted position on the base member for varying the working position of the knife according to the width of the web to be split.

11. A carbon-holding device for a typewriting machine, comprising a base-member to be mounted on the machine, a carbonholding bar provided adjacent one of its ends with a longitudinal slot, and a pair of spaced guide-pins projecting from the base member through said slot to hold the bar against swinging movement while permitting longitudinal movement thereof.

12. A carbon-holding device for a typewrlting machine, comprising a carbon-hold ing bar having a web-splitting blade at one end and a slot at the other end.

13. In a typewriting machine having a platen and a carbon-carria e movable relatively towards and away rom the platen, the combination of a bar-carrying base member detachably mounted on the carboncarriage, and a carbon-holding bar rigidly mounted on the base member and adjustable thereon in the direction of the length of the bar for varying its effective length as determined by the width of the work.

14. In a typewriting machine having a platen and a carbon-carriage movable relatively towards and away from the platen, the combination of a bar-carrying base member detachably mounted on the carboncarriage, and a carbon-holding bar provided at its free end with a web-splitting knife and slidably mounted and guided adjacent its other end on the base member to be longitudinally adjustable thereon for varying the position of the knife relatively to the base {)nember in the direction of the length of the 15. In a typewriting machine having a platen and a carbon-carriage movable relatively towards and away from the platen, the combination of a bar-carrying base member detachably mounted on the carbon-carriage, a carbon-holding bar slidably mounted and guided on the base member to be adjustable thereon in the direction of the length of the bar for varying'its effective length as determined by the width of the work, and a carhon-holding clip pivoted on the base member so that the bar may slide longitudinally relatively thereto and co-operative with the bar in its various positions of longitudinal adj ustment for clamping the carbon to the bar.

ber detachably mounted on .the carbon-' carriage, a carbon-holding bar provided at its free end with a web-splitting knife and slidably mounted and guided adjacent its other end on the base member to be longitudinally adjustable-thereon for varying the position of the knife relatively to the base member in the direction of the length of the bar, and a carbon-holding clippivoted on the base member so that the bar may slide longitudinally relatively thereto A and cooperative with the knife-providing bar in its various positions of longitudinal adjustment for clamping the carbon to the bar.

ALFRED G. F. KUROWSKI. Witnesses:

EDITH B. LIBBEY, CATHERINE A. NEWELL. 

